npm packages installation problem in windows 10

I have successfully installed node on my windows 10 but when I want to install something in windows command prompt, I get stuck. for example when I want to install sass or live-server with node package manager in command prompt it shows this sentence

"..................] \ fetchMetadata: sill resolveWithNewModule send@0.16.2 checking installable status" and after that does not do anything at all and can not install the package properly. please help me.